[gentoo-alt] unemerging causes a bad symlink removal

[Alan Hourihane]

Hi,

I'm using an EPREFIX set to "/" and I have a symlink like so....

/usr -> /j/usr

Now, when I come to unemerging a package the code in vartree.py does
it's thing and when it gets to the above it removes my symlink /usr
which should point to /j/usr and everything breaks until I re-instate
it.

I think that even when EPREFIX is used normally then this problem could
arise. How many people unemerge something in prefix now ???

Anyway....

This is the code in vartree.py.....

		try:
                     os.rmdir(obj)

I've changed the above to this....

                try:
                     if not stat.S_ISLNK(os.lstat(obj).st_mode):
                            os.rmdir(obj)

And it works for now, but it's not foolproof as it could potentially not
remove symlinks when it should.

Does anyone have a better approach ??

Alan.